Planting & Soil第 29 / 100 题
In a fertilizer labeled 16-6-8, the three numbers represent the percentage of which nutrients in order?
a.Nitrogen, potassium, phosphorus
b.Nitrogen, phosphorus, potassium
c.Phosphorus, nitrogen, potassium
d.Potassium, phosphorus, nitrogen
解析
The three-number N-P-K label always lists nitrogen first, phosphorus (as P2O5) second, and potassium (as K2O) third. So 16-6-8 is 16 percent nitrogen, 6 percent phosphorus, and 8 percent potassium by weight. Nitrogen drives leafy green growth, phosphorus supports roots and flowers, and potassium aids overall vigor.
免费刷完整 100 道题库 — 无需注册。
同考点相关题目
- A soil that drains very quickly, warms fast, and holds little water is MOST likely which texture?
- Most landscape and turf plants grow best in soil with a pH in which range?
- To lower the pH of an alkaline soil, which amendment is commonly used?
- A 50-pound bag of 20-0-10 fertilizer contains how many pounds of actual nitrogen?
- Applying a 3-inch layer of organic mulch around plants primarily provides what benefits?
- When planting a container-grown shrub, the top of the root ball should be placed at what level relative to the surrounding soil?